I did read the article, and you are not understanding what the article is claiming. All of those events have been counted, as a separate category of firearm incident, and gun-advocacy groups want them counted a different way. The total number of gun-related events is not in dispute, only whether they make good propaganda points for the death cult side of the argument. They are trying to claim that a ‘good guy with a gun’ frequently prevents violence, and that is simply not what the data presented shows. They are trying to claim that a methodological error has been made, when the reality is that they are just wrong and trying to lie about it.